Improvement in rocking-chairs



A. BEST.

Rocking-Chair.

Patented Oct. 26, I875.'

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WASHINGTON D C N.PETER5, PHOTO LTHOGH PATENT QFFIGE. I

ALBERT BEST, OF BUFFALO, NEW YORK.

IMPROVEMENT IN ROCKING-CHAIRS. Q

Specification forming part of Letters Patent No. 169,228, dated October26, 1875; application filed September 2, 1875.

To all whom it may concern:

Be it known that I, ALBERT BEST, of the city of Buffalo, in the countyof Erie and State of New York, have invented a new and usefulImprovement in Rocking-Chairs, which improvement is fully set forth inthe following specification, reference being had tothe accompanyingdrawing.

My invention relates to that class of rocking-chairs which consist of astationary baseand an upper rocking portion resting upon the base, andconnected thereto by flat or other suitable springs.

Previous to my invention these springs have been rigidly secured to thebase, which causes a short and hard rocking motion of the chair. Inorder to overcome this difficulty as much as possible, comparativelylight springs have been heretofore employed, which is objectionable, assuch springs are more or less liable to be broken in moving the chair.

The object of myimprovement is to remedy these defects; and thisinvention consists in securing the connecting-springs to a pivot orrocking support, whereby they are enabled to follow the movements of therocker to a certain extent, being deflected only during the latter partof the rocking movement, thereby permitting the employment ofheaviersprings without rendering the connection inconveniently stiff,and at the same time producing a long and easy rocking movement.

In the accompanying drawing, Figure 1 is a longitudinal section of arocking-chair provided with my improvement. Fig. 2 is a partly-sectionalfront elevation, and Fig. 3 a

top by a bridge-piece, a. B is the upper rocking part of the chair,consisting of two side frames, 1), connected together by suitablecross-pieces. c c are rockers, secured to the inner side of the frames1), and resting on the side pieces A of the base. 01 represents two flatsprings arranged on the inner side of the rockers, and secured theretoat their ends. e is a rock-shaft or pivoted spring-support held inbearings f attached to the bridge-piece a of the base. The springs 01are secured at the middle to the projecting ends of this shaft 6, asclearly shown in the drawing.

In rocking the chair, the springs d at first adjust themselves to thechanging positions of the rocker by turning the rock-shaft e in itsbearings. At the point at which the rockers rest upon the side pieces Agradually recedes from the spring-support e the springs are deflecteduntil the movement of the rocker is completed, when the tendency of thesprings to return to their normal position reverses the movement.

One end of each spring is preferably connected with the rocker by a boltplaying in a slot or elongated hole, or other suitable means, so as torender the connection self-adjustable.

By securing the springs d to a rocking support, instead of a rigid one,I am enabled to employ heavier'springs, forming a more durableconnection between the base and rocking part of the chair, while themovements of the latter are rendered longer and easier.

Instead of the shaft rocking, it is evident that it may be fixed, andthe springs connected thereto, so as to turn or rock on the endsthereof.

What I claim as my invention is- The combination, with the base A androcking portion B, of the connecting-springs d and rockingspring-support or pivot e, substangiallly as and for the purposehereinbefore set ort ALBERT BEST.

